Systems and methods for protecting a sensitive device from corrosion
US7656602B2 · kind B2 · utility
113Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2008 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Jul 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/41
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for protecting a magnetic head according to one embodiment includes reducing a relative humidity in a vicinity of a magnetic head by passing an elevated bias current through a sensor of the head during at least some time periods when the sensor is not in use for reading data, the elevated bias current being chosen to be sufficient to heat the sensor to a level which will reduce the local relative humidity to below a threshold level for reducing or eliminating corrosion of the sensor. Additional methods are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.